我删除了我的ios平台，并试图再次添加它，但现在它说有一个问题，它需要package.json。
我如何修复ios平台，使它有一个包. json？
在cordova-ios@4. 5. 4下运行8.1.2（也在8.0中试用过）

$ cordova platform add ios
{ Error: npm: Command failed with exit code 1 Error output:
npm ERR! code ENOLOCAL
npm ERR! Could not install from "ios" as it does not contain a package.json file.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/mikenelson/.npm/_logs/2018-10-11T09_47_23_544Z-debug.log
    at ChildProcess.whenDone (/usr/local/lib/node_modules/cordova/node_modules/cordova-common/src/superspawn.js:169:23)
    at emitTwo (events.js:106:13)
    at ChildProcess.emit (events.js:191:7)
    at maybeClose (internal/child_process.js:877:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
stderr: 'npm ERR! code ENOLOCAL\nnpm ERR! Could not install from "ios" as it does not contain a package.json file.\n\nnpm ERR! A complete log of this run can be found in:\nnpm ERR!     /Users/mikenelson/.npm/_logs/2018-10-11T09_47_23_544Z-debug.log\n',
code: 1 }

• • 更新**

8个月后，我又做了同样的事情，但这次我在项目根目录下创建了一个名为"android"的文件夹，只是为了放一些东西进去。

Could not install from "android" as it does not contain a package.json file

正如Luigi Lopez在评论中指出的，问题是你不能在项目根目录下创建一个名为"ios"或"android"的文件夹，它认为你想从本地文件夹安装平台。